JPS6212962B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an artificial irrigation system for plants in flowerbeds, gardens, and other plant cultivation areas.

When artificially irrigating plants, it is common to supply irrigation water from above the cultivation area using a fountain or other method, but this method has some drawbacks.

That is, when water is supplied from above, plant roots tend to grow toward the surface, but when water is cut off, the soil near the surface dries out faster than the soil below. Therefore, there is a risk that the roots of this plant that grow towards the ground surface will wilt. For this reason, when irrigating from above, water must be supplied at relatively short intervals, and plants cannot be left alone for long periods of time.

In addition, a considerable amount of water supplied from above is lost due to evaporation and runoff, and in order for the supplied water to reach the roots of plants, there is a problem that a larger amount of water than necessary must be supplied. be.
Furthermore, water supplied from above has a tendency to form a hard crust on the ground surface, which prevents water from penetrating into the ground and inhibits irrigation. Additionally, water contains various added impurities such as chlorine and fluorine compounds, which can be harmful to plants.

The present invention aims to provide a device for the artificial irrigation of flower beds, garden areas, etc., largely imitating nature's own irrigation systems.

The irrigation device according to the present invention connects a plurality of irrigation blocks with a water pipe, and among these irrigation blocks, at least one at the highest height position and one at the lowest height position have a length protruding from the cultivated area. The irrigation block includes a water container containing water for irrigation, and at least one hollow water suction leg erected within the water container, the water suction leg The upper part of the water dispenser has an opening extending to the upper surface of the water dispenser, and the lower part of the water suction leg has a bottom part that is immersed in the water held by the water dispenser, and the bottom part has a bottom part that sucks water out of the water dispenser. The upper surface of the water dispenser has a plurality of ventilation pores.

This irrigation device is installed at a predetermined depth in the soil below the plants to be irrigated. That is, soil is placed in the water legs and on top of the irrigation block so that the irrigation system is completely covered with soil. Plants are planted above or adjacent to this irrigation system. The soil in the water absorption legs absorbs a suitable amount of water through the water absorption pores, and this water moistens the soil not only on the top and sides of the irrigation block but also below it, while the ventilation pores on the top surface The water vapor in the irrigation block is supplied to the soil, further humidifying the soil. This results in plant roots growing towards the moist soil below. Excess water flows back down into the irrigation block through ventilation holes in the top. A pipe attached to the irrigation block extends above the ground and is used to fill the irrigation block with water.

FIG. 1 is an explanatory diagram showing the present invention. In the figure, 1 is a plurality of irrigation blocks buried in a cultivation field 12, and these plural irrigation blocks 1
As shown in FIG. 2, the irrigation blocks 1 are connected by water pipes 14, and among these irrigation blocks 1, at least the one at the highest height position and the one at the lowest height position protrude from the cultivation area 12. tube with length 1
1 are attached to each other to form an irrigation system.

As shown in FIG. 3, the irrigation block 1 includes a water container 2 containing water for irrigation, and at least one hollow water suction leg 7 erected within the water container.
The upper part of the water absorption leg 7 has an opening extending to the upper surface part 5 of the water container 2, and the lower end of the water absorption leg 7 has a bottom part 9 that is immersed in the water held by the water container 2.
has water absorption pores, and the upper surface portion 5 of the water container 2 has a plurality of ventilation pores 6.

The lower end of the water suction leg 7 is supported by the bottom 8 of the water container 2 or is provided slightly apart from the bottom 8 of the water container 2. The bottom part 9 of the water-absorbing leg 7 is surrounded by a plurality of downward pins 10, and the pins 10 are separated from each other so that water reaches the water-absorbing pores in the bottom part 9 of the water-absorbing leg 7. The ventilation pore 6 is a circular pore,
Or consisting of groove-shaped rays. The width of the ventilation pores 6 is sufficiently narrow so that soil does not fall through the pores in large quantities. The water pipe 14 consists of an inlet pipe 3 and an outlet pipe 4. The pipe 11 is installed through the upper surface 5 of the water container 2 of the irrigation block 1, and the pipe 11
1 extends upward from the upper surface part 5 to a considerable distance, and when this irrigation block 11 is buried in the ground, its upper end is positioned above the ground of the cultivated area 12.

When performing irrigation, place the above-mentioned irrigation device at an appropriate depth in the cultivation area 12, fill the water container 2 with water, put soil into the water absorption leg 7 of the irrigation block 1, and then pour the entire irrigation device. is covered with soil and the plants are planted in the cultivation area 12 on the irrigation system. In order to provide the best irrigation effect, the upper surface 5 of the irrigation block 1 should be placed at a depth approximately corresponding to the average level of the root ends, such that said root ends are at or below the level of the upper surface 5. Make sure it's nearby. The depth of the roots differs for each plant, but for normal gardens, it is recommended to install the irrigation block 1 so that the top surface 5 of the irrigation block 1 is 2 to 4 decimeters below the ground surface. considered appropriate.

The irrigation device according to the present invention can be used both outdoors and indoors using soil in containers, especially for public places, and for indoors using large soil containers for home or office use. be. When this irrigation device is used indoors or elsewhere, the cultivation container preferably contains 15 to 30% by weight, more preferably 18 to 30% by weight.
It is filled with a soil consisting of 24% by weight of mud mixed with an inert filler having a particle size of 0.3 to 1.8 mm, or preferably 0.6 to 1.2 mm, such as calcined clay, volcanic material, volcanic ash, granular rock wool. In order to absorb enough water into the soil, the water absorption pores provided at the bottom of the water absorption legs that are submerged in water must have an average diameter of 0.5 to 1.5 mm.

The water in the container 2 is sucked into the soil in the water absorption leg 7 through the water absorption pores in the bottom 9 of the water absorption leg 7, and the water sucked up by the capillary attraction of the soil is absorbed into the water absorption leg 7.
It extends above and to the sides of the irrigation block 1, sometimes even from the sides of the irrigation block 1 to the bottom. Further, since the upper surface portion 5 is provided with ventilation holes 6, water vapor is sucked out through the ventilation holes 6, and contributes to the moisture distribution in the cultivation area 12 near the irrigation block 1.

When the water level 13 is high in the irrigation block 1, the moisture in the soil above the irrigation block 1 is quite high, but as the water level 13 decreases, the humidity decreases.
After this, when you fill it with water again, the humidity will rise suddenly. This cycle of a gradual decrease in humidity followed by a rapid increase in humidity mimics the natural cycle of irrigation itself, with a dry season followed by a rainy season. Normally, when using the device according to the invention, no irrigation from above is required, and the water supplied by this irrigation device is directly related to the amount required by the soil and plants, so that the optimum amount of water is used, there is no runoff to the ground as occurs when irrigation is applied from above, and there is little evaporation that occurs when irrigation is applied from above.

The amount of water supplied to the water container 2 is determined by the volume of the water container 2, the number, height and cross-sectional area of the water absorption legs 7, the opening area created by the ventilation holes 6 of the upper surface part 5, and the long-term or short-term period. Determine by considering the required amount of water inside. Typically, the irrigation device according to the invention is capable of supplying the water needs of plants for a period of several weeks to several months. The necessity of refilling the irrigation system with water can be easily determined by looking at the float installed in the pipe 11 which indicates the water level in the underground irrigation system.

The device according to the invention can be used both outdoors, such as in flowerbeds and gardens, as well as indoors, and in both cases can be used as a stationary irrigation device.

This irrigation device can be made of any suitable material, such as plastic, stainless steel, copper, etc., and irrigation devices made of this type of material are somewhat frost resistant and will not break. If the cultivation area 12 is subject to very strong frost damage, the water in the water container 2 is sucked out from the pipe 11 before that.

Since the water in the water container 2 remains stagnant for a relatively long period of time, the chlorine contained in the water leaves the water and is discharged through the suction legs 7 or small holes in the soil. Similarly, other substances may precipitate or be converted into harmless salts by bacteria in the water.

FIG. 4 shows another embodiment of the invention, in which the irrigation block 1 is square in plan and has four suction legs 7, one at each corner.
is provided. In order to reinforce the center part, the upper surface part 5 has reinforcing ribs 1 to reinforce the center part.
5 and 16 are provided, and a ventilation hole 6 is provided between them.

FIG. 5 shows a further embodiment of the invention, in which the water container 2 of the irrigation block 1 is made of a cylindrical tube, both sides of which are closed to make it watertight, and an inlet is provided as required. A tube 3 and an outlet tube 4 are provided. This tubular water container 2 should be installed horizontally, and the upper surface 5' is provided with horizontal ventilation holes 6 throughout. The upper surface portion 5' corresponds to the upper surface portion 5 of the previously described embodiments of the invention. One or several water absorption legs 7 are attached from the upper surface part 5'.
extends toward the bottom, its lower end is immersed in water, and the upper end of the water-absorbing leg 7 is open at the upper surface 5'. This water container 2 can be made to have a suitable length, and several irrigation blocks 1 can be connected to each other by water pipes 14, as in the previous embodiment.

FIG. 6 shows a further embodiment of the invention, in which a part of an irrigation block 1 consisting of a tubular pleated water container 2 is shown. In this case, the water container 2 is pleated so that it can be bent as required. This type of irrigation block 1 is particularly suitable for arcuate gardens and the like, and several irrigation blocks 1 can also be used in conjunction with each other.

Since the present invention is configured as explained above, it has an irrigation effect over a long period of time, and can be left uncontrolled for a long period of time, for example, from one month to several months, and the supplied water This device allows almost all of the water in the area adjacent to the plant to be utilized by the roots of the plants, eliminates water loss through evaporation or runoff, and makes it possible to focus irrigation on individual points of the soil when necessary. .

[Brief explanation of the drawing]

1 is an illustration of the invention installed on a slope; FIG. 2 is a sectional view of the device of the invention consisting of two interconnected irrigation blocks for artificial irrigation installed in the soil; FIG. 3 4 is a plan view showing a modification of the irrigation block, FIG. 5 is a perspective view showing another modification of the irrigation block, and FIG. 6 is a still another modification of the irrigation block. It is an explanatory view showing a modification of . 1: Irrigation block, 2: Water container, 5: Top part,
6: ventilation pores, 7: water absorption legs, 9: bottom, 10: pins, 11: pipes, 12: cultivation area, 14: water pipes.

Claims (1)

[Scope of Claims] 1. A plurality of irrigation blocks are connected by water pipes, and among these irrigation blocks, at least the one at the highest height position and the one at the lowest height position protrude from the cultivation area by a length. The irrigation block includes a water container containing water for irrigation, and at least one hollow water suction leg erected within the water container. The upper part of the water container has an opening extending to the upper surface of the water container, the lower part of the water suction leg has a bottom part that is immersed in the water held by the water container, and the bottom part is configured to suck water out of the water container. An irrigation device having a water absorption hole for letting water out, and an upper surface of the water container having a plurality of ventilation holes. 2. The irrigation device according to claim 1, wherein the ventilation pores have a size that does not allow passage of soil particles having an average particle size. 3. The irrigation device according to claim 1, wherein the ventilation pores are slit-shaped pores. 4. The irrigation device according to claim 1, wherein the water absorption pores have an average diameter of 0.5 to 1.5 mm.